You can modify the following field and table properties after the table is created.
| Property | Applies to this object |
| AllowZeroLength | Field |
| Attributes | TableDef and Field |
| DefaultValue | Field |
| OrdinalPosition | Field |
| Name | TableDef and Field |
| ValidateOnSet | Field, only when accessed with the Recordset object |
| ValidationRule |
TableDef and Field (For an example of adding a table-level validation rule to an existing table, see the “Table-Level Validation” section earlier in this chapter.) |
| ValidationText | TableDef and Field |
| Value | Field, only when accessed with the Recordset object after using the AddNew or Edit method |
Unlike SQL DDL, which gives you no way to change a field’s name, you can use DAO to change the Field object’s Name property. In the following example, strDbPath is the path to the database, strTableName is the name of the table, strFieldName is the existing name for the field, and strNewFieldName is the new name for the field:
Dim dbs As Database Dim tdf As TableDef Dim fld As Field Set dbs = OpenDatabase(strDbPath) Set tdf = dbs.TableDefs(strTableName) tdf.Fields(strFieldName).Name = strNewFieldName
Properties other than those listed in the table above can’t be changed. For example, the following code fails because you can’t change the Type property of a field once it has been created:
Set tdf = dbs.TableDefs(strTableName) tdf.Fields(strFieldName).Type = dbInteger '<<< Error occurs here.